Saw-filing tool



June 20, 1939. E A S' EEEEE YR 2,163,248

IIIIIIIIIIII 0L 27/96/26 i Sec/{egggr Patented June 20, 1939 UNITEDSTATES PATENT OFFICE f' SAW-FILING TOOL Eugene A. Sedlmayr, Delavan,Wis.

Application August 9, 1937, Serial No. 158,190

2 Claims.

The invention relates to a saw filing tool and more especially to a sawjointer.

The primary object of the invention is the provision of a tool of thischaracter, wherein it is possible to joint a saw in a minimum period oftime and with accuracy in a single operation of such tool.

Another object of the invention is to provision of a jointer of thischaracter, wherein the files for both the cutting and raker teeth of asaw are susceptible of adjustment so as'to properly level these teeth intheir proper relation to each other particularly where the saw is to beused for soft or hard woods or for frozen or thawed woods and also toaccommodate the tool to a thick or thin saw for the jointing operationthereof.

A further object of the invention is the provision of a jointer of thischaracter, wherein the same will be guided in the operation thereof forthe filing of both the cutter and raker teeth to assure accuracy in theleveling of the teeth with relation to each other.

A further object of the invention is the provision of a jointer of thischaracter, which is simple in construction, thoroughly reliable andefficient in operation, readily and easily handled, relatively light inweight yet strong, durable, and inexpensive to manufacture.

With these and other objects in view, the invention consists in thefeatures of construction, combination and arrangement of parts as willbe hereinafter more fully described, illustrated in the accompanyingdrawing, which discloses the preferred embodiment of the invention andpointed out in the claims hereunto appended.

In the accompanying drawing:

Figure l is an elevation of a jointer constructed in accordance with theinvention.

Figure 2 is a vertical transverse sectional view through a saw showingthe jointer in elevation applied thereto.

Figure 3 is a fragmentary sectional view taken on the line 3-3 of Figure2 looking in the direction of the arrow.

Similar reference characters indicate corresponding parts throughout theseveral views in the drawing.

Referring to the drawing in detail, A desig- Y hates generally a portionof a saw blade having the usual cutting and raker teeth [0 and II,respectively, while B denotes generally the jointer constituting thepresent invention and hereinafter fully described.

The jointer B comprises a body part l2 preferably made from cast metaland is formed with upstanding webs I3, these being arranged at oppositeends of the body and merge into inverted substantially U-shaped saddlesl4 having threaded in opposite sides thereof adjusting screws l5, thesebeing in alignment and opposite each other.

The body 12, which actually is the frame of the tool, constitutes a sideguard, which at the face adapted to confront the saw blade A hasuniformly spaced longitudinally directed runners or contact ribs I6projected therefrom for engagement with the blade A in the operation ofthe tool. Adapted to be disposed between the screws l5 and within thesaddles I4 are the outer cutting teeth files and an intermediate rakertooth file I1 and I8, respectively, the raker tooth file l8 beingdisposed and clamped in a lower level with respect to the higher levelof the outer cutting teeth files ll so that in a single operation of thetool the saw blade A can be acted upon for the jointing of the cuttingand raker teeth of the same with absolute accuracy in the leveling ofthese series of teeth with respect to each other. The screws l5 hold andclamp the files I'lv and H3 in their relation to each other within thesaddles M. It is, of course, apparent from Figures 1 and 2 of thedrawing that these files I1 and [8 can be adjusted for varying thelevels of the teeth of the saw blade A and also to accommodate the toolto various thicknesses of saw blades, being necessary that the teeth bedifferently leveled for the use of the saw in the cutting of soft orhard woods or for thawed or frozen woods. fIhe application of the toolupon the saw blade is clearly shown in Figures 2 and 3 of the drawingand on the shifting of the said tool, that is, the body l2 of the samewith the ribs l6 contacting with the blade of the saw, the raker andcutting teeth of the saw blade will be filed in conformity with thelevel arrangement of the files I1 and I8 within the saddles H! of saidtool.

What is claimed is:

1. A jointer tool for simultaneously jointing the cutting and rakerteeth of a saw, comprising a body forming a saw blade guard, invertedsubstantially U-shaped saddles uppermost with respect to said body,adjusting screws arranged opposite each other and disposed transverselythreaded in said saddles, and a plurality of files arranged side by sideand clamped by said screws so that the cutting edge of the middle fileis slightly below that of the cutting edges of the other files in orderto enable jointing the raker teeth along with the cutting teeth.

2. A jointer tool for simultaneously jointing rake teeth along with thecutting teeth, the middle file being of a thickness corresponding to thespace or gap between tworows of cutting teeth, and runners associatedwith the guard for the saw blade.

EUGENE A. SEDIMAYR.

